Axial flux stator and method of manufacture thereof

a technology of axial flux and stator body, which is applied in the manufacture of stator/rotor body, synchronous machines with stationary armatures, rotating magnets, etc., can solve the problems of high cost of tooling and manufacturing, the production of economical pancake brushless dc (bldc) motors is severely limited, and the manufacturing steps of producing motors can be quite expensiv

Active Publication Date: 2016-11-10
AMETEK BISON GEAR & ENG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This approach simplifies and cost-reduces the production of axial flux stators, making it economically feasible to manufacture pancake DC motors and other axial flux motors by minimizing tooling expenses and ensuring consistent assembly.

Problems solved by technology

While a motor contains two primary components (e.g., the stator and the rotor), the manufacturing of a motor is far from a simple process.
Further, the manufacturing steps of producing the motor can be quite expensive.
For certain applications (e.g., less than 10 horsepower), the cost of tooling and manufacturing has severely limited the production of economical pancake brushless DC (BLDC) motors.

Method used

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  • Axial flux stator and method of manufacture thereof
  • Axial flux stator and method of manufacture thereof
  • Axial flux stator and method of manufacture thereof

Examples

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Embodiment Construction

[0017]FIG. 1 is a cross-sectional side view diagram of an embodiment of an axial flux stator 10 that includes a plurality of magnetically permeable members 12-14, a plurality of windings 16-18, a back iron 20, and an encasing 24. A magnetically permeable member 12-14 may be one or more of a soft magnetic composite (SMC) stator tooth, a lamination steel stack stator tooth, a formed ferrite material stator tooth, and a steel sheet coil stator tooth. The geometric shape of a magnetically permeable member 12-14 may be a cube, a cylinder, a rectangular cube, a rectangular cube with a top plate 15 (which is illustrated in the present figure), and / or any other shape to provide a stator tooth.

[0018]As is shown, the plurality of windings 16-18 are associated with the plurality of magnetically permeable members 12-14 to produce a plurality of winding-magnetically permeable member assemblies or inductance assemblies. For example, a winding 16-18 may include a bobbing that supports a wire coil,...

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Abstract

An axial flux stator includes a plurality of magnetically permeable members, a plurality of windings, a back iron, and an encasing. The plurality of windings is associated with the plurality of magnetically permeable members to produce a plurality of winding-magnetically permeable member assemblies. The back iron is mechanically butt joint coupled to the plurality of winding-magnetically permeable member assemblies. The encasing maintains the butt joint coupling of the back iron to the plurality of winding-magnetically permeable member assemblies.

Description

CROSS REFERENCE TO RELATED PATENTS[0001]The present U.S. Utility Patent Application claims priority pursuant to 35 U.S.C. §121 as a divisional of U.S. Utility application Ser. No. 12 / 512,734, entitled “AXIAL FLUX STATOR AND METHOD OF MANUFACTURE THEREOF”, filed Jul. 30, 2009, which is hereby incorporated herein by reference in its entirety and made part of the present U.S. Utility Patent Application for all purposes.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT—NOT APPLICABLEINCORPORATION-BY-REFERENCE OF MATERIAL SUBMITTED ON A COMPACT DISC—NOT APPLICABLEBACKGROUND OF THE INVENTION[0002]1. Technical Field of the Invention[0003]This invention relates generally to electric motors and more particularly to stators.[0004]2. Description of Related Art[0005]As is known, there are various types of electric motors and an almost endless variety of uses for them. For instances, an electric motor may be an AC motor (e.g., synchronous or induction), a servo motor, a DC motor, o...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): H02K1/14H02K15/12H02K1/18H02K15/02
CPCH02K1/14H02K15/022H02K1/148H02K1/182H02K15/12H02K21/24Y10T29/49009H02K15/14
InventorASHE, LESTER B.HANSON, MATTHEW S.
OwnerAMETEK BISON GEAR & ENG INC